Steel spring floating slab sleeve positioning device

Abstract

The utility model discloses a steel spring floating slab sleeve positioning device, which relates to the technical field of floating slab production dies and comprises an inner support sleeve, a base, a cover plate and a first bolt. The base is mounted on the bottom surface of the mold cavity; the base comprises a bottom plate and an upper boss; an annular groove is formed in the outer edge of the upper boss; a first clamping groove and a second clamping groove are formed in the outer edge of the upper boss; a first protrusion and a second protrusion are arranged at the bottom end of the inner supporting sleeve. A first insertion hole is formed in the middle of the cover plate, and the first bolt is inserted into the first insertion hole; and a screwing cylinder is fixedly mounted in the middle of the upper boss and is in threaded connection with the first bolt. The vibration isolator sleeve is adaptively connected to the position of the outer wall of the inner supporting sleeve in a sleeving manner, and the cover plate and the first bolt can lock the inner supporting sleeve on the base, so that the vibration isolator sleeve is limited; and after concrete hardening is completed, the cover plate and the first bolt are removed, the steel spring floating plate is lifted to conduct demolding of the bottom mold after the inner supporting sleeve is pulled out, and therefore demolding resistance is reduced, and construction convenience is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of floating slab production mould, concretely relates to a steel spring floating slab sleeve positioning device. BACKGROUND

[0002] The steel spring floating slab is an important structure of a damping track and is used for bearing sleepers and trains.

[0003] The main body of the steel spring floating slab adopts a reinforced concrete structure, and a vibration isolator sleeve is fixed in the steel spring floating slab in a pre-buried form; during construction, the steel spring needs to be inserted into the vibration isolator sleeve to achieve buffering and shock absorption. The inner wall of the vibration isolator sleeve is provided with a supporting convex rib, and the end of the steel spring is abutted on the supporting convex rib to avoid being pulled out of the vibration isolator sleeve. The outer wall of the vibration isolator sleeve is provided with an anchoring rod, and the anchoring rod is used to increase the pulling force between the vibration isolator sleeve and the concrete to avoid the vibration isolator sleeve from being pulled out of the concrete.

[0004] During prefabrication of the steel spring floating slab, the vibration isolator sleeve needs to be installed in a mould and rotated transversely to adjust the angle so that the anchoring rod points to a specific direction (for example, the anchoring rods on adjacent vibration isolator sleeves are arranged in parallel with each other) to improve the uniformity of bearing force. Therefore, how to install the vibration isolator sleeve in the mould without hindering demoulding has become a technical problem in the industry. SUMMARY

[0005] In order to overcome the problem of how to install the vibration isolator sleeve in the mould without hindering demoulding in the background art, the utility model provides a steel spring floating slab sleeve positioning device.

[0006] The utility model adopts the technical scheme that:

[0007] A steel spring floating slab sleeve positioning device, which comprises an inner supporting sleeve for supporting a vibration isolator sleeve, a base arranged at the lower end of the inner supporting sleeve for limiting the inner supporting sleeve, a cover plate arranged at the top end of the inner supporting sleeve for plugging the opening at the top end of the inner supporting sleeve, and a first bolt inserted into the inner cavity of the inner supporting sleeve for pulling the base and the cover plate; the base is installed on the bottom surface of the inner cavity of the mould; the base comprises a bottom plate and an upper boss arranged on the upper surface of the middle part of the bottom plate; the outer edge of the upper boss is provided with a ring groove for clamping the bottom end of the inner supporting sleeve; the outer edge of the upper boss is provided with a first clamping groove and a second clamping groove in communication with the ring groove; the bottom end of the inner supporting sleeve is provided with a first protrusion matched with and clamped in the first clamping groove and a second protrusion matched with and clamped in the second clamping groove; the middle part of the cover plate is provided with a first insertion hole, and the first bolt is inserted into the first insertion hole; the middle part of the upper boss is fixedly installed with a threaded sleeve, the inner wall of the threaded sleeve is provided with internal threads, and the first bolt is inserted into the inner cavity of the threaded sleeve and screwed with the internal threads.

[0008] As a further optimization scheme of the utility model, the first clamping groove and the second clamping groove are different in shape and / or size.

[0009] As a further optimization scheme of the utility model, the first clamping groove is rectangular, and the second clamping groove is D-shaped.

[0010] As a further optimization scheme of the utility model, one first clamping groove and two second clamping grooves are arranged in a circumferential array at the side wall position of the upper boss.

[0011] As a further optimization scheme of the utility model, the connecting position of the screwing cylinder and the upper boss is provided with a reinforcing rib.

[0012] As a further optimization scheme of the utility model, the bottom surface of the cover plate is provided with a clamping ring, the inner wall of the clamping ring is matched and attached to the outer side wall of the top end of the inner support sleeve, and the outer wall of the clamping ring is matched and attached to the inner side wall of the top end of the vibration isolator sleeve.

[0013] As a further optimization scheme of the utility model, the inner wall of the vibration isolator sleeve is provided with a supporting convex rib, the supporting convex rib is arranged in a circumferential array along the inner wall of the vibration isolator sleeve, and the outer side wall of the inner support sleeve is matched to the inner edge of the supporting convex rib.

[0014] As a further optimization scheme of the utility model, the outer side wall of the inner support sleeve is provided with a directional protrusion, the directional protrusion is strip-shaped and arranged along the axial direction of the inner support sleeve, and the directional protrusion can be matched and clamped with the directional clamping groove at the inner edge position of the supporting convex rib.

[0015] As a further optimization scheme of the utility model, the supporting convex rib is provided with at least two, and the directional clamping groove is arranged at the inner edge position of any supporting convex rib.

[0016] As a further optimization scheme of the utility model, the inner support sleeve is a cylindrical structure with a constant diameter, and the vibration isolator sleeve is a cylindrical structure with a constant diameter.

[0017] In summary, the utility model has at least one of the following advantages:

[0018] (1) The utility model has simple structure and reliable function, the inner support sleeve is arranged on the base, the vibration isolator sleeve is matched and sleeved on the outer wall position of the inner support sleeve, the cover plate and the first bolt can lock the inner support sleeve on the base, so as to limit the vibration isolator sleeve; after the concrete hardens, the cover plate and the first bolt are removed, the inner support sleeve is pulled out, and then the steel spring floating slab is lifted to demold the bottom mold, so as to reduce the demolding resistance and improve the construction convenience.

[0019] (2) Under the action of the directional protrusion and the directional clamping groove, the vibration isolator sleeve can only be sleeved at a specific angle on the outer wall position of the inner support sleeve; refer to 2-4 Figure 3 Under the action of the first protrusion, the first clamping groove, the second protrusion and the second clamping groove, the inner support sleeve can only be buckled at a specific angle on the outer wall position of the upper boss; therefore, the base is fixedly installed on the mold bottom plate at a specific angle, which can realize the limitation of the pointing of the anchoring rod, thereby improving the construction convenience and product quality.

[0020] (3) The clamping ring plays a supporting role between the inner support sleeve and the vibration isolator sleeve, avoiding deformation of the top end of the vibration isolator sleeve due to extrusion of concrete; the supporting ring is used to apply a supporting force between the base and the vibration isolator sleeve, avoiding deformation of the bottom end of the vibration isolator sleeve due to extrusion of concrete, thereby improving the product quality. BRIEF DESCRIPTION OF DRAWINGS

[0021] The present application will be further described below in conjunction with the drawings:

[0022] Figure 1 It is a schematic view of the overall structure of the utility model from the front view of the vertical section;

[0023] Figure 2 It is a schematic view of the connection structure of the base and the mold bottom plate;

[0024] Figure 3 It is a schematic view of the structure of the base;

[0025] Figure 4 It is a schematic view of the structure of the inner support sleeve;

[0026] Figure 5 It is a schematic view of the structure of the vibration isolator sleeve;

[0027] Figure 6 It is a schematic view of the position and structure of the clamping ring and the supporting ring;

[0028] Figure 7 It is a schematic view of the clamping state of the directional protrusion and the directional clamping groove from the top view.

[0029] EXPLANATION OF REFERENCE NUMERALS:

[0030] In the drawings,

[0031] 1, inner support sleeve; 11, first protrusion; 12, second protrusion; 13, directional protrusion;

[0032] 2, base; 21, bottom plate; 22, upper boss; 220, ring groove; 221, first clamping groove; 222, second clamping groove; 23, threaded sleeve; 231, reinforcing rib; 24, fixing hole; 25, second bolt;

[0033] 3, cover plate; 31, snap ring;

[0034] 4, first bolt; 41, first jack;

[0035] 5, mold bottom plate; 51, first threaded hole;

[0036] 6, vibration isolator sleeve; 61, support rib; 611, directional clamping groove; 62, anchor rod;

[0037] 7, support ring. DETAILED DESCRIPTION

[0038] According to the above structural features of the application, the embodiments of the application are further described:

[0039] Referring to Figures 1-2 , the embodiment provides a steel spring floating plate sleeve positioning device, which comprises an inner support sleeve 1 for supporting a vibration isolator sleeve 6, a base 2 arranged at the lower end of the inner support sleeve 1 for limiting the inner support sleeve 1, a cover plate 3 arranged at the top end of the inner support sleeve 1 for plugging the opening at the top end of the inner support sleeve 1, and a first bolt 4 inserted into the inner cavity of the inner support sleeve 1 for pulling the base 2 and the cover plate 3.

[0040] Referring to Figure 1 , the base 2 is installed in the inner cavity of the mold; the inner cavity of the mold is composed of a mold bottom plate 5 and a mold side plate, and the base 2 is installed on the upper surface of the mold bottom plate 5 by bolts, which serves to position the inner support sleeve 1 and the vibration isolator sleeve 6.

[0041] Referring to Figures 1-3 , the base 2 comprises a bottom plate 21 and an upper boss 22 arranged on the upper surface of the bottom plate 21 (for example, by integral fixed connection or by bolted connection); the outer edge of the upper boss 22 is provided with a ring groove 220 for clamping the bottom end of the inner support sleeve 1, and the ring groove 220 is in the shape of a ring. The outer edge of the upper boss 22 is provided with a first clamping groove 221 and a second clamping groove 222 in communication with the ring groove 220. The first clamping groove 221 and the second clamping groove 222 are both in the shape of a horizontal concave.

[0042] Referring to Figures 3-4 , the bottom end of the inner support sleeve 1 is provided with a first protrusion 11 adapted to and clamped in the first clamping groove 221 and a second protrusion 12 adapted to and clamped in the second clamping groove 222; the first protrusion 11 and the second protrusion 12 are both fixedly connected to the inner side wall position of the bottom end of the inner support sleeve 1 (for example, by integral fixed connection), and the first protrusion 11 and the second protrusion 12 are both in the shape of an inner protrusion.

[0043] Referring to Figure 1 and Figure 6The middle part of the cover plate 3 is provided with a first insertion hole 41, and the first bolt 4 is inserted into the first insertion hole 41. The middle part of the upper boss 22 is fixedly installed with a threaded sleeve 23, and the inner wall of the threaded sleeve 23 is provided with internal threads. The first bolt 4 is inserted into the inner cavity of the threaded sleeve 23 and is screwed with the internal threads. The head of the first bolt 4 is pressed against the top surface of the cover plate 3, and the threads at the bottom end of the first bolt 4 are screwed with the base 2. Thus, pressure is applied to the base 2 and the cover plate 3, which is directed towards the inner support sleeve 1. This achieves the fixation of the vibration isolator sleeve 6 and further achieves the pressing of the vibration isolator sleeve 6 against the mold base plate 5. This reduces the gap between the vibration isolator sleeve 6 and the cover plate 3 and the gap between the vibration isolator sleeve 6 and the mold base plate 5. This avoids the inflow of concrete mortar into the inner cavity of the vibration isolator sleeve 6 and further avoids the adhesion between the base 2 and the vibration isolator sleeve 6.

[0044] With reference to Figure 3 , the first clamping groove 221 and the second clamping groove 222 are different in shape and / or size. Since the first clamping groove 221 is adapted to the first protrusion 11 and the second clamping groove 222 is adapted to the second protrusion 12, the first protrusion 11 cannot be clamped into the second clamping groove 222 and the second protrusion 12 cannot be clamped into the first clamping groove 221 at the same time, thereby achieving the foolproof function.

[0045] With reference to Figure 3 , the first clamping groove 221 is rectangular, and the second clamping groove 222 is D-shaped, thereby having excellent easy-to-process performance.

[0046] With reference to Figure 3 and Figure 4 , the first clamping groove 221 is provided with one, and the second clamping groove 222 is provided with two. Correspondingly, the first protrusion 11 is provided with one, and the second protrusion 12 is provided with two. The upper boss 22 is circular. One first clamping groove 221 and two second clamping grooves 222 are arranged in an equiangular circumferential array at the sidewall position of the upper boss 22. One first protrusion 11 and two second protrusions 12 are arranged in an equiangular circumferential array along the inner wall of the inner support sleeve 1. The inner support sleeve 1 and the base 2 have three evenly distributed clamping positions, thereby improving the installation stability, avoiding the inclination of the inner support sleeve 1 under the action of the concrete expansion force, further avoiding the inclination of the vibration isolator sleeve 6, and improving the product quality.

[0047] With reference to Figure 3 , the connection position of the threaded sleeve 23 and the upper boss 22 is provided with a reinforcing rib. The reinforcing rib is in the shape of a right triangle. One of the right edges of the reinforcing rib is fixedly connected with the upper boss 22 (for example, by welding or by integral connection), and the other right edge is fixedly connected with the threaded sleeve 23 (for example, by welding or by integral connection), thereby improving the installation stability and the anti-unbalanced load capacity of the threaded sleeve 23, avoiding the decrease in the perpendicularity between the threaded sleeve 23 and the base 2 during use, and thereby avoiding the inclination of the inner support sleeve 1 and the vibration isolator sleeve 6, and improving the product quality of the floating slab.

[0048] With reference to Figure 6 , the bottom surface of the cover plate 3 is provided with a snap ring 31 (the snap ring 31 is fixedly connected with the cover plate 3 by integral connection or fixedly connected by bolts), the inner side wall of the snap ring 31 is adapted to and fitted with the outer side wall of the top end of the inner support sleeve 1; the outer side wall of the snap ring 31 is adapted to and fitted with the inner side wall of the top end of the vibration isolator sleeve 6. The cover plate 3 is used to block the top opening of the inner support sleeve 1 and the top opening of the vibration isolator sleeve 6 to prevent the concrete mortar from flowing in; the snap ring 31 is used to improve the connection stability and sealing between the inner support sleeve 1 and the cover plate 3, and the connection stability and sealing between the vibration isolator sleeve 6 and the cover plate 3, to avoid the concrete mortar from flowing in. The snap ring 31 plays a supporting role between the inner support sleeve 1 and the vibration isolator sleeve 6, avoiding the top end of the vibration isolator sleeve 6 from being deformed by the extrusion of concrete, thereby improving the product quality of the floating slab.

[0049] With reference to Figure 5 and Figure 6 , the inner wall of the vibration isolator sleeve 6 is provided with a support rib 61 (for example, fixedly connected by integral connection), and the support rib 61 is arranged in an equidistant and equiangular circumferential array along the inner wall of the vibration isolator sleeve 6; the outer side wall of the inner support sleeve 1 is adapted to the inner edge of the support rib 61. With reference to Figure 6 , when the ore pulp flows into the inner cavity of the vibration isolator sleeve 6 from the top end of the vibration isolator sleeve 6, it will fall and accumulate on the upper surface of the support rib 61; after the concrete hardens, it will cause the support rib 61 to be bonded with the inner support sleeve 1 and difficult to demold; and the concrete accumulated on the support rib 61 usually forms irregularly, with a rough surface, causing the end of the steel spring to be unable to be fitted with the plane of the support rib 61 but only with the irregular surface of the concrete, thereby causing unbalanced load when the train is running, reducing the buffering and damping effect, and reducing the service life of the steel spring. Therefore, it is necessary to avoid the inflow of concrete mortar as much as possible.

[0050] With reference to Figure 5 and Figure 6 , when the ore pulp flows into the inner cavity of the inner support sleeve 1 from the top end of the inner support sleeve 1, it falls and accumulates on the upper surface of the base 2; after the concrete hardens, it will cause the base 2 and the inner support sleeve 1 to be mutually bonded and difficult to be separated, that is, the inner support sleeve 1 cannot be pulled out before demolding, so that the inner support sleeve 1 and the support rib 61 will be mutually abraded when demolding. Therefore, it is necessary to avoid the inflow of concrete mortar as much as possible.

[0051] With reference to Figure 6 , the utility model also includes a support ring 7, the inner side wall of the support ring 7 is adapted to and fitted with the outer side wall of the base 2, the outer side wall of the support ring 7 is adapted to and fitted with the inner side wall of the bottom end of the vibration isolator sleeve 6, and the support ring 7 is used to apply a supporting force between the base 2 and the vibration isolator sleeve 6, avoiding the bottom end of the vibration isolator sleeve 6 from being deformed by the extrusion of concrete, thereby improving the product quality.

[0052] With reference to Figure 6 With reference to Figure 7 The outer side wall of the inner support sleeve 1 is provided with a directional protrusion 13 (for example, by integral fixed connection or by bolted connection), which is strip-shaped and arranged along the axial direction of the inner support sleeve 1; the cross section of the directional protrusion 13 is rectangular and constant in size. The directional protrusion 13 can be fitted and clamped with the directional clamping groove 611 at the inner edge position of the support rib 61. The support rib 61 is provided with at least two directional clamping grooves 611 arranged at the inner edge position of any support rib 61. The anchoring rod 62 is arranged along the radial direction of the vibration isolator sleeve 6, and the end of the anchoring rod 62 is fixedly connected with the outer wall of the vibration isolator sleeve 6 (for example, by bolted connection, by integral fixed connection or by welded connection).

[0053] With reference to Figure 7 Under the action of the directional protrusion 13 and the directional clamping groove 611, the vibration isolator sleeve 6 can only be sleeved at the outer wall position of the inner support sleeve 1 at a specific angle; refer to 2- Figure 3 Under the action of the first protrusion 11, the first clamping groove 221, the second protrusion 12 and the second clamping groove 222, the inner support sleeve 1 can only be buckled at the outer side wall position of the upper boss 22 at a specific angle, and the bottom plate 21 and the upper boss 22 are fixedly connected with each other. Therefore, the base 2 is fixedly installed on the mold bottom plate 5 at a specific angle (which can be obtained through a limited number of experiments, and specific details are not described again), which can realize the limitation of the pointing direction of the anchoring rod 62, thereby improving the convenience of construction (avoiding the need for workers to measure and adjust the pointing direction of the anchoring rod 62 every time they assemble); the pointing direction of the anchoring rod 62 has high limiting precision, thereby improving the product quality.

[0054] The base 2 and the mold bottom plate 5 are connected by welding or by bolts.

[0055] With reference to Figure 3 The base 2 is provided with a plurality of fixing holes 24 which are perpendicular to the upper boss 22 and penetrate through the upper boss 22 and the bottom plate 21; the mold bottom plate 5 is provided with a first screw hole 51 which is adapted to the fixing hole 24, and the first screw hole 51 corresponds to and communicates with the fixing hole 24; the workers pass the second bolt 25 through the fixing hole 24 and then tighten it with the first screw hole 51, thereby realizing the connection between the base 2 and the mold bottom plate 5.

[0056] With reference to Figure 3 The number of fixing holes 24 is not less than two, thereby avoiding the rotation of the base 2 with the fixing hole 24 as the center.

[0057] With reference to Figure 1 With reference to Figure 3The inner supporting sleeve 1 is a cylindrical structure with constant diameter, and the vibration isolator sleeve 6 is a cylindrical structure with constant diameter, so that the inner supporting sleeve 1 can be easily pulled out.

[0058] The installation principle of the utility model is as follows: ① the base 2 is fixedly installed on the upper surface of the mold bottom plate 5; ② the inner supporting sleeve 1 is inserted into the vibration isolator sleeve 6, and the directional protrusion 13 is inserted into the directional clamping groove 611; ③ the supporting ring 7 is inserted into the gap between the inner supporting sleeve 1 and the vibration isolator sleeve 6; ④ the inner supporting sleeve 1 is installed on the base 2, and the first protrusion 11 is clamped into the first clamping groove 221, the second protrusion 12 is clamped into the second clamping groove 222, and the vibration isolator sleeve 6 is pressed on the top surface of the mold bottom plate 5; ⑤ the cover plate 3 is buckled on the top surface of the inner supporting sleeve 1 and the top surface of the vibration isolator sleeve 6, and the clamping ring 31 is clamped into the gap between the inner supporting sleeve 1 and the vibration isolator sleeve 6; ⑥ the first bolt 4 is inserted into the first insertion hole 41 on the cover plate 3 and is screwed with the screwing cylinder 23, so that the head of the first bolt 4 is pressed against the cover plate 3.

[0059] After the installation is completed, the steel cage is arranged in the cavity, and then the concrete is poured, vibrated and hardened. After the hardening is completed: ① the first bolt 4 is removed, and then the cover plate 3 is removed and the inner supporting sleeve 1 is pulled out; ② the mold side mold is removed; ③ the steel spring floating slab is lifted upward by using the roof trolley to remove the mold bottom plate 5 (the roof trolley is connected with the hook through a sling, and the hook is hooked on the lifting ring pre-buried in the steel spring floating slab).

[0060] The utility model discloses simple structure, reliable function, and the inner supporting sleeve 1 is arranged on the base 2, the vibration isolator sleeve 6 is adaptively connected on the outer wall position of the inner supporting sleeve 1, the cover plate 3 and the first bolt 4 can lock the inner supporting sleeve 1 on the base 2, thereby limiting the vibration isolator sleeve 6, and after the concrete hardening is completed, the cover plate 3 and the first bolt 4 are removed, the inner supporting sleeve 1 is pulled out, and then the steel spring floating slab is lifted to remove the bottom mold, thereby reducing the demolding resistance and improving the construction convenience.

[0061] In the description of the utility model, it should be explained that the directions or position relations indicated by the terms "upper", "lower", "left", "right" and the like are the directions or position relations shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the utility model.

[0062] In the description of the utility model, it also needs to be explained that, unless there is definite stipulation and limitation, the terms "arrange", "install", "connect" should be understood in a broad sense, for example, it can be fixed connection, can also be detachable connection, or integrally connected, can be mechanical connection, can also be electrical connection, can be direct connection, can also be connected through intermediate medium, can be the communication inside two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0063] In conclusion, for those skilled in the art, according to the guidance of the utility model, the changes, modifications, replacements, deformations of the utility model without departing from the principles and spirits of the utility model still fall into the protection scope of the utility model.

Claims

1. A steel spring floating slab sleeve positioning device, characterized by: The inner support sleeve (1) is used for supporting the isolator sleeve (6), the base (2) is arranged at the lower end of the inner support sleeve (1) and is used for limiting the inner support sleeve (1), the cover plate (3) is arranged at the top end of the inner support sleeve (1) and is used for blocking the opening at the top end of the inner support sleeve (1), and the first bolt (4) is inserted into the inner cavity of the inner support sleeve (1) and is used for pulling the base (2) and the cover plate (3). The base (2) is installed at the bottom surface of the inner cavity of the mold. The base (2) comprises a bottom plate (21) and an upper boss (22) arranged at the middle of the upper surface of the bottom plate (21); an annular groove (220) for clamping the bottom end of the inner support sleeve (1) is arranged at the outer edge of the upper boss (22); a first clamping groove (221) and a second clamping groove (222) in communication with the annular groove (220) are arranged at the outer edge of the upper boss (22); the bottom end of the inner support sleeve (1) is provided with a first protrusion (11) matched with the first clamping groove (221) and a second protrusion (12) matched with the second clamping groove (222). The middle of the cover plate (3) is provided with a first insertion hole (41), and the first bolt (4) is inserted into the first insertion hole (41); the middle of the upper boss (22) is fixedly installed with a threaded sleeve (23), the inner wall of the threaded sleeve (23) is provided with internal threads, and the first bolt (4) is inserted into the inner cavity of the threaded sleeve (23) and is screwed with the internal threads.

2. The steel spring floating slab sleeve positioning device of claim 1, wherein: The shapes and / or sizes of the first clamping groove (221) and the second clamping groove (222) are different.

3. The steel spring floating slab sleeve positioning device of claim 2, wherein: The first clamping groove (221) is rectangular, and the second clamping groove (222) is D-shaped.

4. The steel spring floating slab sleeve positioning device of claim 3, wherein: The first clamping groove (221) is provided with one, and the second clamping groove (222) is provided with two; the upper boss (22) is circular; one first clamping groove (221) and two second clamping grooves (222) are arranged in a circumferential array at the side wall position of the upper boss (22).

5. The steel spring floating slab sleeve positioning device of claim 4, wherein: The connection position of the threaded sleeve (23) and the upper boss (22) is provided with a reinforcing rib.

6. The steel spring floating slab sleeve positioning device of claim 5, wherein: The bottom surface of the cover plate (3) is provided with a clamping ring (31), the inner wall of the clamping ring (31) is matched with the outer side wall of the top end of the inner support sleeve (1), and the outer wall of the clamping ring (31) is matched with the inner side wall of the top end of the isolator sleeve (6).

7. The steel spring floating slab sleeve positioning device of claim 6, wherein: The inner wall of the isolator sleeve (6) is provided with a support convex rib (61), the support convex rib (61) is arranged in a circumferential array along the inner wall of the isolator sleeve (6); and the outer side wall of the inner support sleeve (1) is matched with the inner edge of the support convex rib (61).

8. The steel spring floating slab sleeve positioning device of claim 7, wherein: The outer side wall of the inner support sleeve (1) is provided with a directional protrusion (13), the directional protrusion (13) is strip-shaped and arranged along the axial direction of the inner support sleeve (1); and the directional protrusion (13) is matched with and clamped in a directional clamping groove (611) at the inner edge position of the support convex rib (61).

9. The steel spring floating slab sleeve positioning device of claim 8, wherein: The support convex rib (61) is provided with at least two, and the directional clamping groove (611) is arranged at the inner edge position of any support convex rib (61).

10. The steel spring floating slab sleeve positioning device of any one of claims 1-9, wherein: The inner support sleeve (1) is a cylindrical structure with constant diameter, and the vibration isolator sleeve (6) is a cylindrical structure with constant diameter.

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